EP0400170A1 - Procédé de fabrication d'un filtre pour combustibles liquides - Google Patents

Procédé de fabrication d'un filtre pour combustibles liquides Download PDF

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Publication number
EP0400170A1
EP0400170A1 EP89109760A EP89109760A EP0400170A1 EP 0400170 A1 EP0400170 A1 EP 0400170A1 EP 89109760 A EP89109760 A EP 89109760A EP 89109760 A EP89109760 A EP 89109760A EP 0400170 A1 EP0400170 A1 EP 0400170A1
Authority
EP
European Patent Office
Prior art keywords
plastic
filter fabric
plastic filter
support body
connection piece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP89109760A
Other languages
German (de)
English (en)
Other versions
EP0400170B1 (fr
EP0400170B2 (fr
Inventor
Wilhelm Kools
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cessione filtertek Sa
Original Assignee
Filtertek GmbH
Filtertek SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8201428&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0400170(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Filtertek GmbH, Filtertek SA filed Critical Filtertek GmbH
Priority to AT89109760T priority Critical patent/ATE88245T1/de
Priority to DE8989109760T priority patent/DE58904085D1/de
Priority to EP89109760A priority patent/EP0400170B2/fr
Publication of EP0400170A1 publication Critical patent/EP0400170A1/fr
Publication of EP0400170B1 publication Critical patent/EP0400170B1/fr
Application granted granted Critical
Publication of EP0400170B2 publication Critical patent/EP0400170B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14336—Coating a portion of the article, e.g. the edge of the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/111—Making filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13—Supported filter elements
    • B01D29/15—Supported filter elements arranged for inward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • B01D35/027—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks rigidly mounted in or on tanks or reservoirs
    • B01D35/0273—Filtering elements with a horizontal or inclined rotation or symmetry axis submerged in tanks or reservoirs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/26—Filters with built-in pumps filters provided with a pump mounted in or on the casing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F02M37/50—Filters arranged in or on fuel tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/14—Filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/737—Articles provided with holes, e.g. grids, sieves

Definitions

  • the invention relates to a method for producing a filter for liquid fuels, which consists of a grid-shaped, elastic support body made of plastic, a surrounding elastic plastic filter fabric and a molded on the support body pump connection piece, the filter through a narrow circular opening into the interior a fuel tank can be inserted by elastic bending.
  • the pump connection piece is connected to the fuel pump which is also located in the interior of the fuel tank or projects into the interior. Thereafter, such filters are bent in an approximately U-shaped manner through the fuel tank filler opening and bounce back into their original shape inside the fuel tank.
  • the fuel pump is actuated, the liquid fuel flows through the filter from the outside inward, with undesired particles being retained on the outside and is supplied to its intended use through the pump connecting piece in a fuel line.
  • the filter is therefore correspondingly elastic and the support body also has a certain elasticity. Only the pump connection piece and a hub located on the support body are correspondingly rigid due to their shape and wall thicknesses.
  • the lattice-shaped support body with hub and the pump connecting piece consist of plasticizable plastics and the filter fabric consists of specially made fabric mats with network gaps, the size and shape of which are prescribed.
  • Such a filter is known from German utility model G 86 08 100.4 and German patent application 36 09 906.
  • the production of such a filter is, however, only very inadequately described there.
  • the lattice-shaped elastic support body on which the pump connection zen is arranged to be exposed on all sides within the closed flat hose made of the filter fabric and to be subsequently connected to the filter fabric only in the area of the pump connecting piece.
  • the fabric hose (the plastic filter fabric) is made by welding the two transverse and one longitudinal edge of a fabric blank.
  • the timing and other details of the manufacturing process and, above all, the type of fastening cannot be deduced from this.
  • the present invention is therefore based on the object of proposing an improved manufacturing process leading to the known filter.
  • the problem is solved according to the invention in that firstly a single piece of plastic filter fabric is punched out in a single layer with an outer contour and with an inner recess on the pump connecting piece, and that the plastic filter fabric is then inserted into the casting space of a plastic injection molding tool by injection molding plasticizable plastic Support body is formed with the pump connector and at the same time the plastic filter fabric is firmly connected to the pump connector.
  • a simplification of the manufacturing process also occurs in that outside of the plastic injection mold, the plastic filter fabric is closed by folding over the support body and by welding on a welding edge.
  • the plastic filter fabric in the plastic injection mold is attached to ribs of the support body by injection molding. This can Contrary to all previous expectations, a permanent connection between support body and plastic filter fabric can be created even when thermal expansion forces occur.
  • a further improvement of the method according to the invention consists in that the plastic filter fabric is folded in two layers around an intended folded edge. This is possible because the position of the plastic filter fabric in relation to the pump connection piece is already firmly established.
  • plastic filter fabric is welded after folding and only then is its outer finished contour formed by punching. This measure eliminates special precautions for an exact double layer.
  • the plastic filter fabric produced according to the weft-chain principle runs parallel to a main longitudinal side of the polygon with its weft direction in the case of a polygonal finished contour of the welding edge. This measure ensures a particularly good fusion of the plastic filter fabric on the pump connection piece.
  • the filter on which the manufacturing process is based consists of a grid-shaped, elastic support body 1 made of plastic that can be plasticized, an elastic plastic filter fabric 2 surrounding the support body 1 and a pump connection piece 3 molded onto the support body 1.
  • the filter is through a dimensionally very narrow circular opening 4 can be inserted into the interior of a fuel tank 5 by its longitudinal extension being bent into a "U" (FIG. 5).
  • the plastic filter fabric 2 is punched out in its single-layer outer contour 6 and with an inner recess 7 for the pump connection piece 3.
  • the inner recess 7 later centers the single-layer plastic filter fabric 2.
  • the plastic filter fabric 2 is then placed in a plastic injection molding tool 8 (FIG. 2), the single-layer contour 6 already being positioned in such a way that a later folding edge 9 adopts a suitable position occupies the casting room 10.
  • the casting space 10 is filled during the injection molding of the plastic so that the support body 1 is formed together with the pump connection piece 3 and at the same time the plastic filter fabric 2 is melted together.
  • the plastic injection molding tool 8 after the plastic injection molding tool 8 has been lifted out, the plastic filter fabric 2 is finished over the folded edge 9 or around the support body 1 and by welding on a welding edge 11 the closed finished filter 12 is completed.
  • the plastic filter fabric 2 manufactured according to the weft-chain principle is inserted into the plastic injection mold 8 according to a special rule: in the case of a polygonal, e.g. Rectangular finished contour 6a of the welding edge 11, the weft direction 13 runs parallel to a main longitudinal side 14 of the polygon (FIGS. 1 and 4).
  • a metal sleeve 15 with a tight fit is pushed onto the pump connection piece 3 as the last working step.
  • a closure bushing 16 ensures that the finished filter 12 is kept clean until it is installed on the fuel pump (not shown), which is installed in the fuel tank 5 through the circular opening 4 after installation with the finished filter 12.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Filtration Of Liquid (AREA)
  • Filtering Materials (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
EP89109760A 1989-05-30 1989-05-30 Procédé de fabrication d'un filtre pour combustibles liquides Expired - Lifetime EP0400170B2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT89109760T ATE88245T1 (de) 1989-05-30 1989-05-30 Verfahren zum herstellen eines filters fuer fluessige kraftstoffe.
DE8989109760T DE58904085D1 (de) 1989-05-30 1989-05-30 Verfahren zum herstellen eines filters fuer fluessige kraftstoffe.
EP89109760A EP0400170B2 (fr) 1989-05-30 1989-05-30 Procédé de fabrication d'un filtre pour combustibles liquides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP89109760A EP0400170B2 (fr) 1989-05-30 1989-05-30 Procédé de fabrication d'un filtre pour combustibles liquides

Publications (3)

Publication Number Publication Date
EP0400170A1 true EP0400170A1 (fr) 1990-12-05
EP0400170B1 EP0400170B1 (fr) 1993-04-14
EP0400170B2 EP0400170B2 (fr) 1998-03-18

Family

ID=8201428

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89109760A Expired - Lifetime EP0400170B2 (fr) 1989-05-30 1989-05-30 Procédé de fabrication d'un filtre pour combustibles liquides

Country Status (3)

Country Link
EP (1) EP0400170B2 (fr)
AT (1) ATE88245T1 (fr)
DE (1) DE58904085D1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4026230A1 (de) * 1990-04-11 1991-10-17 Bosch Gmbh Robert Fluessigkeitsfilter zum einbau in einen kraftstoffbehaelter
DE4142017A1 (de) * 1991-12-19 1993-06-24 Hasso Von Bluecher Vorrichtung zur reduzierung der emission beim betanken von kraftfahrzeugen
DE4307949A1 (de) * 1993-03-12 1994-09-15 Bayerische Motoren Werke Ag Kraftstoffbehälter
DE29508681U1 (de) * 1995-05-24 1995-08-17 Hillers, Theo, 53937 Schleiden Kraftstoff-Filter
DE29609750U1 (de) * 1996-06-04 1996-11-28 Filtertek, S.A., Plailly Kraftstoff-Filter
WO1998052670A1 (fr) * 1997-05-22 1998-11-26 Filterwerk Mann+Hummel Gmbh Element filtrant
WO2000003784A1 (fr) * 1998-07-16 2000-01-27 Filtertek S.A. Filtre pour liquides
EP1043055A1 (fr) * 1999-04-05 2000-10-11 Filtertek, Inc. Procédé de fabrication d'un filtre en combinant en une seule étape soudure et coupage
US6736273B2 (en) 2001-02-08 2004-05-18 Filtertek Inc. Filter for fluids, especially fuels
DE102006012214A1 (de) * 2006-03-16 2007-09-20 Siemens Ag Kraftstofffilter und Verfahren zur Herstellung eines Kraftstofffilters
US7306768B2 (en) 2003-02-21 2007-12-11 Filtertek Inc. Filter for medical and laboratory use, especially for blood analysis and the like
US20100181245A1 (en) * 2007-07-10 2010-07-22 Continental Automotive Gmbh Preliminary Filter for a Fuel Delivery Unit
CN103321800A (zh) * 2012-03-21 2013-09-25 通用汽车环球科技运作有限责任公司 液体燃料过滤器组件

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101459747B1 (ko) * 2014-07-09 2014-11-13 주식회사 에스티에스엠 레이저 커팅과 융착 기반의 연료필터 제조방법 및 이를 위한 컴퓨터로 판독가능한 기록매체

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8124632U1 (de) * 1981-08-22 1983-01-20 Ferch, Alois, 4040 Neuss Filter fuer fluessigkeiten, insbesondere fuer kraftstoff
DE3609906A1 (de) * 1986-03-24 1987-10-01 Alois Ferch Filter fuer kraftstoffe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8124632U1 (de) * 1981-08-22 1983-01-20 Ferch, Alois, 4040 Neuss Filter fuer fluessigkeiten, insbesondere fuer kraftstoff
DE3609906A1 (de) * 1986-03-24 1987-10-01 Alois Ferch Filter fuer kraftstoffe
DE3609905A1 (de) * 1986-03-24 1987-10-01 Alois Ferch Filter fuer kraftstoffe

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4026230A1 (de) * 1990-04-11 1991-10-17 Bosch Gmbh Robert Fluessigkeitsfilter zum einbau in einen kraftstoffbehaelter
DE4026230C2 (de) * 1990-04-11 1999-04-08 Bosch Gmbh Robert Flüssigkeitsfilter zum Einbau in einen Kraftstoffbehälter und Verfahren zu dessen Herstellung
DE4142017A1 (de) * 1991-12-19 1993-06-24 Hasso Von Bluecher Vorrichtung zur reduzierung der emission beim betanken von kraftfahrzeugen
DE4307949A1 (de) * 1993-03-12 1994-09-15 Bayerische Motoren Werke Ag Kraftstoffbehälter
DE29508681U1 (de) * 1995-05-24 1995-08-17 Hillers, Theo, 53937 Schleiden Kraftstoff-Filter
DE29609750U1 (de) * 1996-06-04 1996-11-28 Filtertek, S.A., Plailly Kraftstoff-Filter
US5928507A (en) * 1996-06-04 1999-07-27 Filtertek, S.A. Fuel filter
WO1998052670A1 (fr) * 1997-05-22 1998-11-26 Filterwerk Mann+Hummel Gmbh Element filtrant
WO2000003784A1 (fr) * 1998-07-16 2000-01-27 Filtertek S.A. Filtre pour liquides
US6575309B1 (en) 1998-07-16 2003-06-10 Filtertek Inc. Filter for fluids
US6451205B1 (en) 1999-04-05 2002-09-17 Filtertek Inc. Filter manufacturing process using a combined welding and cutting step
EP1043055A1 (fr) * 1999-04-05 2000-10-11 Filtertek, Inc. Procédé de fabrication d'un filtre en combinant en une seule étape soudure et coupage
US7083722B2 (en) 1999-04-05 2006-08-01 Filtertek Inc. Filter manufacturing process using a combined welding and cutting step
US6736273B2 (en) 2001-02-08 2004-05-18 Filtertek Inc. Filter for fluids, especially fuels
US7306768B2 (en) 2003-02-21 2007-12-11 Filtertek Inc. Filter for medical and laboratory use, especially for blood analysis and the like
DE102006012214A1 (de) * 2006-03-16 2007-09-20 Siemens Ag Kraftstofffilter und Verfahren zur Herstellung eines Kraftstofffilters
EP1998866A1 (fr) * 2006-03-16 2008-12-10 Continental Automotive GmbH Filtre a carburant et procede de fabrication d'un filtre a carburant
US20100181245A1 (en) * 2007-07-10 2010-07-22 Continental Automotive Gmbh Preliminary Filter for a Fuel Delivery Unit
US8784656B2 (en) * 2007-07-10 2014-07-22 Continental Automotive Gmbh Preliminary filter for a fuel delivery unit
CN103321800A (zh) * 2012-03-21 2013-09-25 通用汽车环球科技运作有限责任公司 液体燃料过滤器组件
CN103321800B (zh) * 2012-03-21 2015-11-18 通用汽车环球科技运作有限责任公司 液体燃料过滤器组件

Also Published As

Publication number Publication date
ATE88245T1 (de) 1993-04-15
EP0400170B1 (fr) 1993-04-14
DE58904085D1 (de) 1993-05-19
EP0400170B2 (fr) 1998-03-18

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